<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="layui-v2.3.0/layui/css/layui.css">
</head>
<body>
<script type="text/javascript" src="layui-v2.3.0/layui/layui.all.js"></script>
<script type="text/javascript">
    layui.layer.msg('hello')

</script>

</body>
</html>